Grimm, born in 1972, finished an apprenticeship in bookselling and works as an author, translator, journalist, editor, and producer for a large number of international book and newspaper publishers. He is fascinated with literature, movies and video games. He loves amusement parks, travelling, and grilling experiments throughout the entire year. Just recently, he received the World Cookbook Award for his work. He lives and works in a small town in the Wiehen Hills near Bielefeld (which, despite all rumors to the contrary, does exist) with his family, a pack of wild cats and life-size statues of Batman, Kung Fu Panda, Rayman, and orc Thrall.